North star wants to know how many books are in the libraries. we learn that there are 412 books in the 5th-grade library, 421 in the 6th, 357 in the 7th grade and 462 in the 8th grade. which grade has the second greatest number of books?

What dimensions can créate more than one triangle ?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.